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CO2 laser enhances the chilling tolerance of wheat seedlings by stimulating NO synthesis
Chen, Yi-ping1; Liu, Qiang1,2; Chen, Dong1
2016-10-01
Source PublicationCANADIAN JOURNAL OF PLANT SCIENCE
Volume96Issue:5Pages:796-807
SubtypeArticle
AbstractTo investigate the mechanism by which laser irradiation enhances the chilling tolerance of wheat seedlings, seeds were exposed to different treatments, and biochemical parameters were measured. Compared with the control group, chilling stress (CS) led to an increase in the concentrations of malondialdehyde (MDA) and H2O2, and decreases in the activities of superoxide dismutase (SOD), ascorbate peroxidase (APX), glutathione reductase (GR), catalase (CAT), peroxidase (POD), and nitric oxide synthase (NOS), and the concentrations of nitric oxide (NO) and protein. Treatment with 2-(4-carboxyphenyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide (PTIO), sodium tungstate (ST), and NG-nitro-L-arginine methyl ester (L-NAME) followed by CS resulted in further increases in the concentrations of MDA and H2O2 and further decreases in the other parameters. However, treatment with PTIO, ST, and L-NAME followed by laser irradiation had the opposite effects on these parameters. When the seeds were treated with PTIO, ST, and L-NAME followed by laser and CS, the concentrations of MDA and H2O2 were significantly lower and the other parameters were higher than in the PTIO, ST, and L-NAME plus CS groups. These results suggest that CO2 laser irradiation enhances the chilling tolerance of wheat seedlings by stimulating endogenous NO synthesis.
KeywordTriticum Aestivum Co2 Laser Chilling Stress No Signal Reactive Oxygen Species Stress Tolerance
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.1139/cjps-2015-0385
WOS KeywordNITRIC-OXIDE ; GLUTATHIONE-REDUCTASE ; SUPEROXIDE-DISMUTASE ; LASER IRRADIATION ; UV-B ; STRESS ; PEROXIDASE ; RESPONSES ; GROWTH ; PLANTS
Indexed BySCI
Language英文
WOS Research AreaAgriculture ; Plant Sciences
WOS SubjectAgronomy ; Plant Sciences
WOS IDWOS:000386571000011
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Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/5651
Collection生态环境研究室
Affiliation1.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Xian 710061, Peoples R China
2.State Ocean Adm, Inst Oceanog 2, Key Lab Marine Ecosyst & Biogeochem, Hangzhou 310012, Zhejiang, Peoples R China
Recommended Citation
GB/T 7714
Chen, Yi-ping,Liu, Qiang,Chen, Dong. CO2 laser enhances the chilling tolerance of wheat seedlings by stimulating NO synthesis[J]. CANADIAN JOURNAL OF PLANT SCIENCE,2016,96(5):796-807.
APA Chen, Yi-ping,Liu, Qiang,&Chen, Dong.(2016).CO2 laser enhances the chilling tolerance of wheat seedlings by stimulating NO synthesis.CANADIAN JOURNAL OF PLANT SCIENCE,96(5),796-807.
MLA Chen, Yi-ping,et al."CO2 laser enhances the chilling tolerance of wheat seedlings by stimulating NO synthesis".CANADIAN JOURNAL OF PLANT SCIENCE 96.5(2016):796-807.
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